1. Kurimoto, Ltd. , 1-12-19 Kitahorie, Nishiku , Osaka 559-0021 , Japan
2. Research Center for Solar Energy Chemistry, Osaka University , 1-3 Machikaneyama, Toyonaka , Osaka 560-8531 , Japan
3. Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University , Sendai , 980-8578 , Japan
4. Joining and Welding Research Institute, Osaka University , 11-1 Mihogaoka, Ibaraki , Osaka 567-0047 , Japan